Kuraray Co., Ltd.

Kuraray Fastening Co., Ltd.

Hideki Kamada

Hiroyuki Kawai

Tomohiro Hayakawa

Shinya Inada

Hideo Hayashi

Takayoshi Hosoya

Satoru Ono

Taketoshi Okuno

Nobuhiro Koga

Yoshikatsu Fujisawa

Masakazu Nishiyama

Satoru Kobayashi

Nozomu Sugoh

Toshiaki Ikimine

Junichi Taniguchi

Suguru Mizuki

Teruyuki Itami

Yohei Nishiumi

Shohei Shibata

Toshiji Kashiwagi

A water-soluble male-type molded hook-and-loop fastener includes a substrate and a plurality of male-type engaging elements, arranged in rows, protruding from the substrate surface. The engaging elements have a shape rising from the substrate surface and curving mid-course in a row direction, or a shape rising from the substrate surface, branching forward and backward mid-course in the row direction and curving in the row direction, with tip portions oriented toward the substrate surface in either shape. The substrate and the engaging elements both contain a mixture of a polyvinyl alcohol, 5 to 30 parts by mass of a polyhydric alcohol- or ethylene oxide-based polymer, and 3 to 20 parts by mass of a layered inorganic particle, based on 100 parts by mass of the polyvinyl alcohol. The polyvinyl alcohol has a degree of polymerization of 300 to 700 and a degree of saponification of 60 to 80% by mole.

Water-soluble male molded hook-and-loop fastener and method for producing same

A drawing device for drawing a drawable material, the drawing device comprising at least a pair of tapered rollers each having a taper ratio in a range of 0.035 to 0.50, wherein the taper ratio is represented by (&#x3b2;&#x2212;&#x3b1;)/2L, where &#x3b2; denotes a maximum diameter of the roller, &#x3b1; denotes a minimum diameter of the roller, and L denotes a length of a tapered portion of the roller.

Drawing device and drawing method

The present invention relates to a filter material including a sheet-like laminate which includes an ultrafine fiber aggregate layer formed of an aggregate of ultrafine fibers produced by an electrospinning method having an average fiber diameter of not less than 10 nm and not more than 1000 nm, and a base material formed of a nonwoven fabric or a woven fabric constituted from fibers having an average fiber diameter of 1 &#x3bc;m or more, said filter material satisfying all of a plurality of specific requirements, having a capability of collecting or separating &#x3bc;m-order microfine particles with a high accuracy and exhibiting a less pressure loss and a long filtering life, as well as a filter cartridge using the filter material.

Filtration material for filters, and filter cartridge

Provided is a separator for non-aqueous batteries not only having shutdown property but also achieving both higher output and short-circuit resistance. The separator comprising a laminate comprising: a low melting-point polymer fiber layer (A) having a melting point of 100 to 200&#xb0; C., the low melting-point polymer fiber layer (A) comprising nanofibers having a fiber diameter of 1000 nm or smaller and formed from the low melting-point polymer; and a heat-resistant polymer fiber layer (B) positioned on the low melting-point polymer fiber layer (A) and comprising a high melting-point polymer having a melting point over 200&#xb0; C. or a heat infusible polymer, the heat-resistant polymer fiber layer (B) comprising a mixture of nanofibers having a fiber diameter of 1000 nm or smaller and non-nanofibers having a fiber diameter over 1000 nm and both formed from heat-resistant polymer.

Separator for non-aqueous batteries, non-aqueous battery using same, and production method for separator for non-aqueous batteries

Laminates including a nanofiber layer and a base layer, the nanofiber layer comprising polyamide filaments formed from a polyamide (a) and having an average fiber diameter of 10 to 1000 nm, and the base layer comprising fibers at least including polyamide fibers formed from a polyamide (a), where the polyamide (a) comprises a dicarboxylic acid unit and a diamine unit and where (i) the dicarboxylic acid unit comprising a terephthalic acid unit in the proportion of not lower than 60% by mole, and (ii) the diamine unit comprising at least one diamine unit selected from the group consisting of 1,9-nonanediamine unit and 2-methyl-1,8-octanediamine unit in the proportion of not lower than 60% by mole in total are provided, as well as separators for capacitors including the laminates.

Laminate, separator for capacitor, and capacitor

Readily-fibrillable fibers of PVA polymer, having good chemical resistance, hydrophilicity, weather resistance and water resistance have a flattened cross-sectional profile and have a mean thickness D (&#x3bc;m) that satisfies the following formula (1):0.4&#x2266;D&#x2266;5&#x2003;&#x2003;(1)

Polyvinyl alcohol fibers, and nonwoven fabric comprising them

PVA binder fibers having the following characteristics: a cross-section circularity of at most 30%, a degree of swelling in water at 30&#xb0; C. of at least 100%, and a degree of dissolution in water of at most 20%, are capable of being processed even under low-energy drying condition, for example, in high-speed drying in a hot air drying system (e.g., air-through drier) or in low-temperature drying in a multi-cylinder system or the like to give paper and nonwoven fabrics of high strength.

Polyvinyl alcohol binder fibers, and paper or nonwoven fabric comprising them

High-absorbent polyvinyl alcohol fibers and nonwoven fabric comprising them

Growing community of inventors

Okayama, Japan

Hideki Kamada